Vapor lamp, especially hydrocarbon incandescence lamp



Dec. 25 1923.

P. LUCAS VAPOR LAMP, ESPECIALLY HYDROCARBON INCANDESCENGELAMP Filed May 10 1922 Unvenfor M aw 3y: v fltorn Patented Dec. 25, 1923.

Iran STATES PAUL LUCAS, F BERLIN-FRIEDENAU, GERMANY.

PATENT OFFICE,

VAPOR LAMP, ESPECIALLY HYDROCARBON INCANDESCENGE LAMP.

Application filed May 10, 1922. Serial No. 559,821.

The invention consists partly in the feature that a piston which produces the com-- pressed air'and is subjected to the pressure of a spring is located in a vertical cylinder, above which the fuel receptacle and a chamber for compressed air'are arranged; the piston is moved upwards in that cylinder under the pressure of said spring which is located below it. Another part of the invention consists in a certain combination and arrangement of parts which renders possible in an easy manner the assembling and taking to pieces the springactuated pump composed of the cylinder, the piston and the spring. J

A third part of the invention consists in a special construction of the gasifier tube and of the burner nozzle, the object being, that the burner proper may be easily re moved and the gasifier tube may be easily cleaned.

A fourth part of the invention consists in certain means, the object of which is, in the case of the lamp failing or extinguishing, to prevent the further acting pressure of the air from injuring the lamp, as is all fully described hereinafter.

In order to make my invention more clear,

"I refer to the accompanying drawing, in

which similar numbers of reference denote similar parts throughout the several views and in which Fig. 1 is a vertical section through a lamp constructed according to this invention and shown by way of example. Fig. Qis a horizontal section through the lamp standard or the cylinder respectively, in line 2-2 of Fig. 1. Fig. 3 is a vertical section through the burner proper, drawn on a larger scale.

The cylindrical standard 5 is aflixed at 1ts lower end to the foot land carries at its upper end the basin 10. Thestandard or cylinder 5 enclosesa piston i which isattached to a tube 3 adapted to be displaced along a tube 2 supported by a transverse bar 9. Wlthin the tubes 2 and 3 is a spiral,

spring 6 which has comparatively many con Volutions, say 60, and tends constantly to move the piston 4t upwards. Owing'tothe spring having that comparatively large number of convolutions, its pressurealong the required length of way I is practically uniform.

7 is a transverse bar which is aflixed to the tube 3 and the ends of which extend through vertical slots 8 of the cylinder 5.

The piston 4 is withdrawn and the spring is compressed by shoving the bar'downwards 1n the slots 8. Displacing thepiston in the direction to the basin 10 is effected by the spring. The displacement proceeds gradually corresponding to the fallof the liquid level in the basin.

The bar 9 is loosely put through suitable slots provided inthe cylinder 5, and serves as support for thetube 2 and the spring 6.

To take the inner parts ofthe pump to pieces for the purpose of inspecting orcleaning it, nothing else is necessary but to remove the bar 9, when the parts 2, 3, 4, 6 may be easily-removed.

The compressed air enclosed in theupper portion of the cylinder 5 is conducted by a tube 13 into the basin 10; The tube 13 is provided with a non-return valve 14. Ow-

1 ing to the pressure of the air upon the petrol,

etc'., contained in the basin 10, a certain quantity of the liquid fuel is driven upwards into and within the gasifying tube 11 which has at its top a nozzle '12. The tube 11 consists of German silver or of another material that is a comparativelybad conductor of heat so that the basin is but moderately heated. The upper end of the tube 11 is slightly conical and encompassed by a correspondinglyshapedsleeve 15 which consists of copper or another material thatis a good conductor of heat. The sleeve 15 is surrounded by the usual'known heating or starting basin 16. p r

The sleeve 15 carries the burner proper and may be easily taken ofi the tube 11, to-

gether, of course, with the burner. Alsothe nozzle 12 is removabletrom the tube 11. The ga-sifying tube is, thus, easily accessible for inspection and cleaning; a

that main-flame.

Ifalamp ofthe kind in question extinguishes the liquid fuel continuesto escape from the nozzle (12) under the pressure of the spring 6 and flows down upon the lower parts of the lamp. To obviate such an cecurrence, the basin is subdivided by a hori-' zontal wall 27 (Fig. 1), whereby the basin is subdivided into two compartments, of which the lower (10) contains the liquid fuel, whereas'the upper (17) serves to intercept and collect thenon-consumed fuel that may have escaped from the nozzle 12.

.The burnerproper consists of three con- :1; I centric tubes 20, 21, 18 of which the first receives; the gas issuing from the nozzle 12 and has at its top a perforated or wire gauze cap 22, The resistance of this cap is such that the mixture of fuel gas and air passing upwards within the tube 20 is throttled in sucha measure that a certain portion passes downwards through the tube-like .space between the tubes'20 and 21. 'These tubes join at their lower ends the outer tube 18 where there are holes 19 through which the mixture portion in-question escapes and forms a plurality of auxiliary flames.

' A portion of the fuel-air-mixture may be conducted over into the space between the tubes 20 and 21 also before getting to the top 22 of the tube 21, viz, by means of aninverted U-shaped traverse-piece 24 (Fig. 8) which is'inserted into lateral apertures 25 of the tube'20 and forms a channel 26 which intercepts a portion of said mixture and conducts it laterally away into said space, as

7 indicated by the arrows in Fig. 3.

Atthe lower end of the burner tube 18 'is a small cap 23 which consists of a good conductor of heat, such as brass, copper, or

i the like, and conducts part of the heat of the auxiliary flames burning at the. apertures 19 to the sleeve 15 in order to assist in the gasification' of the fuel.

Owing to the draught caused by the chimney the auxiliary flames at the apertures 19 are directed upwards. Supposing, the lamp has got extinguished from any cause and.

horizontal rod or handle 7 so that air en ters into the space"above it. There are no motion-transmitting means whatever, no

rolls, rails, systems of levers, or the like. The piston is actuated quite directly in its axial direction, in the simplest manner tersPatent of the United States is:

1. In a vapor-lamp, especially a hydrocarbon incandescense lamp, the combination 'with a closed fuel-basin, a=burner over it,

and a gasifier betweenthe basin and the burner, of an air-cylinder with a piston located below saidbasin, and moving upwards v when forcing air into said basin, and rigid means for actuating the piston from the outside ofthe cylinder and projecting through slots thereof, as set forth.

2., In a vapor-lamp especially a hydro- 0 carbon incandescense lamp, the combination with a closed fuel-basin, aburner over it, and a gasifier between the basin and the burner of a vertical air-pumfp cylinder lo. cated below said basin; a piston located within that cylinder and moving upwards when forcing air thereinto; a hollow piston rod affixed to the piston; a stationary guidetube for the piston-rod; a spiral spring located within said piston rod and its guide 1 tube ;.rigid means for actuating the said piston and projectin through vertical slots of said cylinder; and a removable support for the lower end of the said guide-tube as set forth. i

3. Ina vapor-lamp, especially a hydrocarbon incandescense lamp, the combination with a closed fuel-basin; a gasifier arranged upon it and having a slightly conical upper end; a burner having a correspondingly shaped lower end with which it'is attached to the gasifier of a vertical air'pumplocated below said basin, and rigid means for actuating the piston, of that pump from the outer side of the pump-cylinder and p-rojecting through lateralslots thereof, as set forth.

4. In a vapor-lamp,especially a hydrocarbon incandescen-se lamp, thecombination with a closed fuel-basin with a horizontal partition wall subdividing it into a closed lower liquid fuel compartment and an up per collecting receptacle for overflowing fuel; a gasifier upon said basin and a burner upon said gasifier, of-a vertical air-pump located below said basin, and means for actuating the piston of that pump from the outer side of the pump-cylinder, as set forth.

5. In a vapor-lamp, especially a hydrocarbon incanclescense lamp, the combination with a closed fuel-basin, a gasifying tube extending upwards from said basin, a burner composed of three concentric tubes, of which i the outermost has apertures at its lower end and the other two form a passage from the 5 burner head to said apertures, and a small basin which surrounds the said apertures and is open at its top and consists of a good conductor of heat, of a vertical air-pump located below said basin, and means for so tuating the vpiston of that pump from the 10 outer side of the pump-cylinder as set forth. In testimony whereof I aifix my signature;

PAUL LUCAS. 

